Hornady Critical Defense 5.7x28mm 40gr FTX Ammo 25rd Box

The Hornady Critical Defense 5.7x28mm ammunition delivers consistent expansion and penetration through the patented Flex Tip eXpanding (FTX) bullet design. This specialized defensive round maximizes the 5.7x28mm cartridge's high-velocity characteristics while ensuring reliable performance in personal protection scenarios.

What Makes This Different

The FTX bullet features a soft polymer tip that initiates expansion upon impact, eliminating the clogging issues common with traditional hollow point designs. Unlike standard ball ammunition that may over-penetrate, the Critical Defense round expands to create a larger wound channel while maintaining controlled penetration depths. The nickel-plated brass cases provide smooth feeding and corrosion resistance in all weather conditions.

Key Features

• 40-grain FTX bullet with polymer tip for consistent expansion
• Nickel-plated brass cases resist corrosion and ensure smooth extraction
• Low flash propellant reduces muzzle signature in low-light situations
• Optimized for short-barrel firearms including pistols and PDWs
• Crimped primer and sealed case mouth prevent moisture intrusion
• Compatible with all 5.7x28mm firearms including FN Five-seveN and PS90
• Consistent velocities across temperature ranges from -20°F to +140°F

The 5.7x28mm Critical Defense round achieves approximately 1,650 fps from a 4.8-inch barrel, delivering flat trajectory and minimal recoil. The high velocity combined with the expanding bullet design makes this ammunition effective for personal protection while reducing the risk of over-penetration in urban environments. The round performs consistently in both pistol and carbine platforms, maintaining accuracy standards suitable for defensive applications at typical engagement distances.

Technical Specs

• Caliber: 5.7x28mm
• Bullet Weight: 40 grains
• Bullet Type: FTX (Flex Tip eXpanding)
• Muzzle Velocity: 1,650 fps (4.8" barrel)
• Muzzle Energy: 242 ft-lbs
• Case Material: Nickel-plated brass
• Primer: Non-corrosive Boxer
• Quantity: 25 rounds per box, 10 boxes per case
• Manufacturer: Hornady Manufacturing
• Item Number: 90000

This ammunition represents the optimal balance between the 5.7x28mm's inherent penetration capabilities and controlled expansion for defensive use. The proven FTX technology ensures reliable terminal performance across various barrier materials while maintaining the cartridge's signature flat trajectory and manageable recoil characteristics.